diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/SROA.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/SROA.cpp | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/llvm/lib/Transforms/Scalar/SROA.cpp b/llvm/lib/Transforms/Scalar/SROA.cpp index bf3ec9616f1..dbbc1758b9f 100644 --- a/llvm/lib/Transforms/Scalar/SROA.cpp +++ b/llvm/lib/Transforms/Scalar/SROA.cpp @@ -1192,8 +1192,7 @@ static bool isSafePHIToSpeculate(PHINode &PN) { // If this pointer is always safe to load, or if we can prove that there // is already a load in the block, then we can move the load to the pred // block. - if (isDereferenceablePointer(InVal, DL) || - isSafeToLoadUnconditionally(InVal, MaxAlign, TI)) + if (isSafeToLoadUnconditionally(InVal, MaxAlign, TI)) continue; return false; @@ -1262,8 +1261,6 @@ static bool isSafeSelectToSpeculate(SelectInst &SI) { Value *TValue = SI.getTrueValue(); Value *FValue = SI.getFalseValue(); const DataLayout &DL = SI.getModule()->getDataLayout(); - bool TDerefable = isDereferenceablePointer(TValue, DL); - bool FDerefable = isDereferenceablePointer(FValue, DL); for (User *U : SI.users()) { LoadInst *LI = dyn_cast<LoadInst>(U); @@ -1273,11 +1270,9 @@ static bool isSafeSelectToSpeculate(SelectInst &SI) { // Both operands to the select need to be dereferencable, either // absolutely (e.g. allocas) or at this point because we can see other // accesses to it. - if (!TDerefable && - !isSafeToLoadUnconditionally(TValue, LI->getAlignment(), LI)) + if (!isSafeToLoadUnconditionally(TValue, LI->getAlignment(), LI)) return false; - if (!FDerefable && - !isSafeToLoadUnconditionally(FValue, LI->getAlignment(), LI)) + if (!isSafeToLoadUnconditionally(FValue, LI->getAlignment(), LI)) return false; } |
